ICD-10 · PDGM grouping
M42 Spinal osteochondrosis
All 21 codes in the M42 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
21
Can lead a claim
19
Cannot lead a claim
2
What CMS assigns to M42
19 of the 21 codes group to Musculoskeletal Rehabilitation; 2 are assigned no clinical group. None of the 21 is assigned a comorbidity subgroup. 19 of the 21 can lead a claim.
Every code in M42
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| M42.0 Juvenile osteochondrosis of spine | ||||
| M42.00 | Juvenile osteochondrosis of spine, site unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M42.01 | Juvenile osteochondrosis of spine, occipito-atlanto-axial regionCMS: Juvenile osteochondrosis of spine, occipt-atlan-ax region | Can lead a claim | E | None |
| M42.02 | Juvenile osteochondrosis of spine, cervical region | Can lead a claim | E | None |
| M42.03 | Juvenile osteochondrosis of spine, cervicothoracic region | Can lead a claim | E | None |
| M42.04 | Juvenile osteochondrosis of spine, thoracic region | Can lead a claim | E | None |
| M42.05 | Juvenile osteochondrosis of spine, thoracolumbar region | Can lead a claim | E | None |
| M42.06 | Juvenile osteochondrosis of spine, lumbar region | Can lead a claim | E | None |
| M42.07 | Juvenile osteochondrosis of spine, lumbosacral region | Can lead a claim | E | None |
| M42.08 | Juvenile osteochondrosis of spine, sacral and sacrococcygeal regionCMS: Juvenile osteochondrosis of spine, sacr/sacrocygl region | Can lead a claim | E | None |
| M42.09 | Juvenile osteochondrosis of spine, multiple sites in spine | Can lead a claim | E | None |
| M42.1 Adult osteochondrosis of spine | ||||
| M42.10 | Adult osteochondrosis of spine, site unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M42.11 | Adult osteochondrosis of spine, occipito-atlanto-axial regionCMS: Adult osteochondrosis of spine, occipt-atlan-ax region | Can lead a claim | E | None |
| M42.12 | Adult osteochondrosis of spine, cervical region | Can lead a claim | E | None |
| M42.13 | Adult osteochondrosis of spine, cervicothoracic region | Can lead a claim | E | None |
| M42.14 | Adult osteochondrosis of spine, thoracic region | Can lead a claim | E | None |
| M42.15 | Adult osteochondrosis of spine, thoracolumbar region | Can lead a claim | E | None |
| M42.16 | Adult osteochondrosis of spine, lumbar region | Can lead a claim | E | None |
| M42.17 | Adult osteochondrosis of spine, lumbosacral region | Can lead a claim | E | None |
| M42.18 | Adult osteochondrosis of spine, sacral and sacrococcygeal regionCMS: Adult osteochondrosis of spine, sacr/sacrocygl region | Can lead a claim | E | None |
| M42.19 | Adult osteochondrosis of spine, multiple sites in spine | Can lead a claim | E | None |
| M42.9 | Spinal osteochondrosis, unspecified | Can lead a claim | E | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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